How do I check if a number is positive or negative in C#?

Question

How do I check if a number is positive or negative in C#?

Answer 1

    public static bool IsPositive<T>(T value)
        where T : struct, IComparable<T>
    {
        return value.CompareTo(default(T)) > 0;
    }

Answer 2

num < 0 // number is negative

Answer 3

You youngins and your fancy less-than signs.

Back in my day we had to use Math.abs(num) != num //number is negative !

Answer 4

public static bool IsNegative<T>(T value)
   where T : struct, IComparable<T>
{
    return value.CompareTo(default(T)) < 0;
}

Answer 5

bool isNegative(int n) {
  int i;
  for (i = 0; i <= Int32.MaxValue; i++) {
    if (n == i) 
      return false;
  }
  return true;
}